[1] Univ Southern Calif, Keck Sch Med, Div Nucl Med, Los Angeles, CA 90007 USA
[2] Univ Southern Calif, Mol Imaging Ctr, Keck Sch Med, Dept Radiol, Los Angeles, CA 90007 USA
[3] Univ Washington, Dept Radiol, Div Nucl Med, Seattle, WA USA
[4] Mem Sloan Kettering Canc Ctr, Dept Radiol, Mol Imaging & Therapy Serv, New York, NY USA
[5] Univ Calif Los Angeles, Dept Mol & Med Pharmacol, Los Angeles, CA USA